<template>
  <div class="app-container">
    <div class="filter-container">
      <el-button class="filter-item" style="margin-left: 10px;" type="primary" icon="el-icon-edit" @click="handleCreate">
        新增
      </el-button>
    </div>
    <el-table
      :key="tableKey"
      v-loading="listLoading"
      :data="tableData"
      border
      fit
      highlight-current-row
      style="width: 100%;"
      @sort-change="sortChange"
    >
      <el-table-column label="序号" prop="num" width="100px" align="center" />
      <el-table-column label="角色编号" prop="people" min-width="150px" align="center" />
      <el-table-column label="角色名称" prop="title" width="600px" align="center" />
      <el-table-column label="操作" prop="status" class-name="status-col" width="200">
        <el-button type="text" size="mini">
          删除
        </el-button>
        <el-button type="text" size="mini" @click="handleEdit(row)">
          配置权限
        </el-button>
      </el-table-column>
    </el-table>

    <pagination v-show="total>0" :total="total" :page.sync="listQuery.page" :limit.sync="listQuery.limit" @pagination="getList" />

    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form ref="dataForm" :rules="rules" :model="temp" label-position="left" label-width="70px" style="width: 400px; margin-left:50px;">
        <el-form-item label="名称" prop="title">
          <el-input v-model="temp.title" />
        </el-form-item>
        <!--        <el-form-item label="人员数" prop="people">-->
        <!--          <el-input v-model="temp.people" />-->
        <!--        </el-form-item>-->
        <!--        <el-form-item label="权限">-->
        <!--          <el-select v-model="temp.status" class="filter-item" placeholder="请选择">-->
        <!--            <el-option v-for="item in statusOptions" :key="item" :label="item" :value="item" />-->
        <!--          </el-select>-->
        <!--        </el-form-item>-->
      </el-form>

      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">
          取消
        </el-button>
        <el-button type="primary" @click="dialogStatus==='create'?createData():updateData()">
          确认
        </el-button>
      </div>
    </el-dialog>

    <!--权限配置-->
    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogEditVisible">
      <div class="custom-tree-container">
        <div class="block">
          <el-tree
            :data="data"
            show-checkbox
            node-key="id"
            default-expand-all
            :expand-on-click-node="false"
            :render-content="renderContent"
          />
        </div>
        <el-button type="primary" style="margin-top: 30px; margin-left: 30px">确认</el-button>
        <el-button>取消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { fetchList, fetchPv, createArticle, updateArticle } from '@/api/article'
import waves from '@/directive/waves' // waves directive
import { parseTime } from '@/utils'
import Pagination from '@/components/Pagination' // secondary package based on el-pagination

const calendarTypeOptions = [
  { key: '', display_name: '管理员' },
  { key: '', display_name: '用户' }
]

const calendarTypeKeyValue = calendarTypeOptions.reduce((acc, cur) => {
  acc[cur.key] = cur.display_name
  return acc
}, {})

export default {
  name: 'ComplexTable',
  components: { Pagination },
  directives: { waves },
  filters: {
    statusFilter(status) {
      const statusMap = {
        // published: 'success',
        // draft: 'info',
        // deleted: 'danger'
      }
      return statusMap[status]
    },
    typeFilter(type) {
      return calendarTypeKeyValue[type]
    }
  },
  data() {
    const data = [{
      id: 1,
      label: '运维平台',
      children: [{
        label: '教学管理',
        children: [{
          label: '课程管理'
        }, {
          label: '班级管理'
        }, {
          label: '测试管理'
        }, {
          label: '时间事件管理'
        }]
      }, {
        label: '人员管理',
        children: [{
          label: '角色管理'
        }, {
          label: '用户界面'
        }, {
          label: '学生管理'
        }, {
          label: '教师管理'
        }, {
          label: '客户管理'
        }]
      }, {
        label: '营销管理',
        children: [{
          label: '订单管理'
        }, {
          label: '营销任务管理',
          children: [{
            label: '营销任务管理界面'
          }, {
            label: '营销任务详情'
          }]
        }, {
          label: '我的营销'
        }]
      }, {
        label: '其他管理',
        children: [{
          label: '评分项管理'
        }, {
          label: '试题管理'
        }, {
          label: '题库管理'
        }, {
          label: '消息管理'
        }, {
          label: '积分管理',
          children: [{
            label: '积分规则'
          }, {
            label: '积分历史'
          }, {
            label: '积分商品页'
          }]
        }, {
          label: '数据管理'
        }]
      }, {
        label: '首页管理',
        children: [{
          label: '特色教学'
        }, {
          label: '学校简介'
        }, {
          label: '活动管理'
        }]
      }]
    }]
    return {
      data: JSON.parse(JSON.stringify(data)),
      tableData: [{ num: '1', title: '共享课程资源', people: '101' },
        { num: '2', title: '讲师', people: '102' },
        { num: '3', title: '企业教学负责人', people: '103' }],
      temp: {
        title: '120102199806022412', people: '东方故事大概多少个人啊'
      },
      tableKey: 0,
      list: null,
      total: 0,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20,
        title: undefined,
        people: undefined,
        sort: '+id'
      },
      statusOptions: ['管理员', '用户'],
      sortOptions: [{ label: 'ID Ascending', key: '+id' }, { label: 'ID Descending', key: '-id' }],
      showReviewer: false,
      dialogFormVisible: false,
      dialogEditVisible: false,
      dialogStatus: '',
      textMap: {
        update: '编辑权限',
        create: '新增'
      },
      dialogPvVisible: false,
      pvData: [],
      downloadLoading: false
    }
  },
  created() {
    this.getList()
  },
  methods: {
    append(data) {
      if (!data.children) {
        this.$set(data, 'children', [])
      }
    },
    remove(node, data) {
      const parent = node.parent
      const children = parent.data.children || parent.data
      const index = children.findIndex(d => d.id === data.id)
      children.splice(index, 1)
    },
    getList() {
      this.listLoading = true
      fetchList(this.listQuery).then(response => {
        this.list = response.data.items
        this.total = response.data.total

        // Just to simulate the time of the request
        setTimeout(() => {
          this.listLoading = false
        }, 1.5 * 1000)
      })
    },
    handleFilter() {
      this.listQuery.page = 1
      this.getList()
    },
    handleModifyStatus(row, status) {
      this.$message({
        message: '操作Success',
        type: 'success'
      })
      row.status = status
    },
    sortChange(data) {
      const { prop, order } = data
      if (prop === 'id') {
        this.sortByID(order)
      }
    },
    sortByID(order) {
      if (order === 'ascending') {
        this.listQuery.sort = '+id'
      } else {
        this.listQuery.sort = '-id'
      }
      this.handleFilter()
    },
    resetTemp() {
      this.temp = {
        id: undefined,
        title: '',
        status: '管理员',
        people: ''
      }
    },
    handleEdit(row) {
      this.temp = Object.assign({}, row) // copy obj
      this.temp.timestamp = new Date(this.temp.timestamp)
      this.dialogStatus = 'update'
      this.dialogEditVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    handleCreate() {
      this.resetTemp()
      this.dialogStatus = 'create'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    createData() {
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          this.temp.id = parseInt(Math.random() * 100) + 1024 // mock a id
          this.temp.author = 'vue-element-admin'
          createArticle(this.temp).then(() => {
            this.list.unshift(this.temp)
            this.dialogFormVisible = false
            this.$notify({
              title: 'Success',
              message: '已添加',
              type: 'success',
              duration: 2000
            })
          })
        }
      })
    },
    handleUpdate(row) {
      this.temp = Object.assign({}, row) // copy obj
      this.temp.timestamp = new Date(this.temp.timestamp)
      this.dialogStatus = 'update'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    updateData() {
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          const tempData = Object.assign({}, this.temp)
          tempData.timestamp = +new Date(tempData.timestamp) // change Thu Nov 30 2017 16:41:05 GMT+0800 (CST) to 1512031311464
          updateArticle(tempData).then(() => {
            const index = this.list.findIndex(v => v.id === this.temp.id)
            this.list.splice(index, 1, this.temp)
            this.dialogFormVisible = false
            this.$notify({
              title: 'Success',
              message: 'Update Successfully',
              type: 'success',
              duration: 2000
            })
          })
        }
      })
    },
    handleDelete(row, index) {
      this.$notify({
        title: '删除成功',
        type: 'success',
        duration: 2000
      })
      this.list.splice(index, 1)
    },
    handleFetchPv(pv) {
      fetchPv(pv).then(response => {
        this.pvData = response.data.pvData
        this.dialogPvVisible = true
      })
    },
    handleDownload() {
      this.downloadLoading = true
      import('@/vendor/Export2Excel').then(excel => {
        const tHeader = ['title', 'people', 'status']
        const filterVal = ['title', 'people', 'status']
        const data = this.formatJson(filterVal)
        excel.export_json_to_excel({
          header: tHeader,
          data,
          filename: 'table-list'
        })
        this.downloadLoading = false
      })
    },
    formatJson(filterVal) {
      return this.list.map(v => filterVal.map(j => {
        if (j === 'timestamp') {
          return parseTime(v[j])
        } else {
          return v[j]
        }
      }))
    },
    getSortClass: function(key) {
      const sort = this.listQuery.sort
      return sort === `+${key}` ? 'ascending' : 'descending'
    }
  }
}
</script>
<style>
  .custom-tree-node {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    padding-right: 8px;
  }
</style>
